Structural heterogeneity in a binary Pd-Si metallic glass

Na Chen; Hongxia Zhang; Ke Fu Yao

doi:10.1080/09500839.2014.995741

Structural heterogeneity in a binary Pd-Si metallic glass

Na Chen, Hongxia Zhang, Ke Fu Yao

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

A Pd<inf>81</inf>Si<inf>19</inf> bulk metallic glassy rod with a diameter of 4.5 mm was produced by water quenching the fluxed alloy. Despite a negative heat of mixing between Pd and Si elements and very simple components constituting the binary Pd-Si glass-forming system, structural heterogeneity was induced either by slow cooling of a liquid or sub-T<inf>g</inf> annealing of glassy ribbons. The sub-T<inf>g</inf> annealing experiments evidenced that a more ordered amorphous phase emerged from the original glassy matrix. Our work provides an alternative way to tune the microstructure of metallic glasses by subsequent thermal treatment on an as-prepared single glassy phase.

Original language	English
Pages (from-to)	77-84
Number of pages	8
Journal	Philosophical Magazine Letters
Volume	95
Issue number	2
DOIs	https://doi.org/10.1080/09500839.2014.995741
Publication status	Published - 2015 Feb 1

Keywords

metallic glasses
microstructure
Pd-Si binary alloy system
structural heterogeneity

ASJC Scopus subject areas

Condensed Matter Physics

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10.1080/09500839.2014.995741

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abstract = "A Pd81Si19 bulk metallic glassy rod with a diameter of 4.5 mm was produced by water quenching the fluxed alloy. Despite a negative heat of mixing between Pd and Si elements and very simple components constituting the binary Pd-Si glass-forming system, structural heterogeneity was induced either by slow cooling of a liquid or sub-Tg annealing of glassy ribbons. The sub-Tg annealing experiments evidenced that a more ordered amorphous phase emerged from the original glassy matrix. Our work provides an alternative way to tune the microstructure of metallic glasses by subsequent thermal treatment on an as-prepared single glassy phase.",

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AB - A Pd81Si19 bulk metallic glassy rod with a diameter of 4.5 mm was produced by water quenching the fluxed alloy. Despite a negative heat of mixing between Pd and Si elements and very simple components constituting the binary Pd-Si glass-forming system, structural heterogeneity was induced either by slow cooling of a liquid or sub-Tg annealing of glassy ribbons. The sub-Tg annealing experiments evidenced that a more ordered amorphous phase emerged from the original glassy matrix. Our work provides an alternative way to tune the microstructure of metallic glasses by subsequent thermal treatment on an as-prepared single glassy phase.

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KW - microstructure

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KW - structural heterogeneity

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Structural heterogeneity in a binary Pd-Si metallic glass

Abstract

Keywords

ASJC Scopus subject areas

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